B4 Organising Animals and Plants

Question 1

4 parts of blood

Answer 1

Red blood cells , white blood cells, platelets plasma

Question 2

Red blood cells

Answer 2

Carries oxygen, no nucleus, haemoglin, large sa, bioncave disc

Question 3

White blood cells

Answer 3

Produce antibodies and antitoxins to fight infection, phagocytosis (change shape)

Question 4

Plasma

Answer 4

Carries everything in blood and transports it round body

Question 5

Platelets

Answer 5

Helps blood clot and prevents microorganisms entering

Question 6

Artery

Answer 6

Carry oxygenated blood away from heart, high pressure, thick walls, small lumen

Question 7

Vein

Answer 7

Carries deoxygenated blood to the heart, low pressure, thin walls, large lumen

Question 8

Capillary

Answer 8

Involved in the exchange of materials at the tissue (CO2 Oxygen), walls single cell thick, tiny vessels, narrow lumen

Question 9

Label heart

Answer 9

Pulmonary artery, vena cava, right atrium, right ventricle, left ventricle, left atrium, pulmonary vein, aorta